EP 2774716 A2 20140910 - Method of producing a hollow airfoil
Title (en)
Method of producing a hollow airfoil
Title (de)
Verfahren zur Herstellung einer hohlen Schaufel
Title (fr)
Procédé de production d'une aube creuse
Publication
Application
Priority
US 201313790397 A 20130308
Abstract (en)
A method of producing an airfoil (10) is provided. The method includes forming a steel airfoil preform with a pocket (23) on at least one of the pressure (15) and suction surfaces (16), forming a cover plate (30) for the pocket (23) and welding the cover plate (30) over the pocket (23).
IPC 8 full level
B23P 15/04 (2006.01); F01D 5/14 (2006.01); F04D 29/32 (2006.01)
CPC (source: EP US)
B23K 35/0255 (2013.01 - EP US); B23K 35/0261 (2013.01 - EP US); B23P 15/02 (2013.01 - US); B23P 15/04 (2013.01 - EP US); F01D 5/147 (2013.01 - EP US); F04D 29/324 (2013.01 - EP US); F04D 29/388 (2013.01 - EP US); F05D 2230/21 (2013.01 - EP US); F05D 2230/232 (2013.01 - EP US); F05D 2230/233 (2013.01 - EP US); F05D 2230/234 (2013.01 - EP US); F05D 2230/25 (2013.01 - EP US); Y10T 29/49336 (2015.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2774716 A2 20140910; EP 2774716 A3 20161228; CN 104033188 A 20140910; JP 2014218996 A 20141120; US 2014286785 A1 20140925
DOCDB simple family (application)
EP 14157365 A 20140228; CN 201410082644 A 20140307; JP 2014040023 A 20140303; US 201313790397 A 20130308